CN102733702B - Top and bottom hinge capable of adjusting back resistance - Google Patents

Abstract

The invention relates to a top and bottom hinge capable of adjusting back resistance, which mainly comprises a base, a rotating shaft unit arranged on the base, two damping units connected with the rotating shaft unit, two flow regulating valves arranged on the base and a back resistance regulating valve arranged on the base, wherein the rotating shaft unit rotates by utilizing the pushing force generated when a door is opened and drives the damping units to move in the rotating process, meanwhile, different back resistance values provided by the back resistance regulating valve enable the buffering force of the door panel when the door is opened to be adjusted according to different conditions, when the pushing force or the pulling force exerted on the door panel disappears, the door panel can be gradually closed by being driven by the damping units, and the door closing speed is controlled by the tightness of the flow regulating valves in the closing process.

Description

Sky and earth hinge with adjustable back resistance

technical field

The present invention relates to a sky-earth hinge, in particular to a sky-earth hinge with adjustable back resistance.

Background technique

At present, the door panel is connected to the door frame by an exposed door closer or a concealed door closer, so that the door panel can rotate relative to the door frame to achieve the purpose of opening or closing the door. As far as the hidden door closer (such as the heaven and earth hinge) is concerned, a rotating shaft is mainly used to connect with the door panel. The rotating shaft can be rotated by the thrust when the door is opened, and drives a damping unit to move during the rotation. Once the door panel is subjected to After the thrust disappears, the spring return force provided by the damping unit will force the rotating shaft to reverse to drive the door panel to close.

Traditional sky and earth hinges usually do not necessarily have the design of the back resistance function. The back resistance function is to allow the door panel to obtain a cushioning effect when opening the door, so as to avoid damage to the door panel or glass door due to excessive force when opening the door , but the size of the back resistance of the traditional heaven and earth hinge is fixed and cannot be adjusted. In this case, the same back resistance effect may be too small for a strong person, but may be too large for a weak person. Therefore, There is no way to adjust the back resistance for different usage conditions in the traditional world hinge, and the applicability needs to be improved.

Contents of the invention

The main purpose of the present invention is to provide a sky-earth hinge, which can adjust the back resistance according to different usage conditions.

Another object of the present invention is to provide a sky-ground hinge, which has the function of forced pressure release, so as to prevent the structure from being damaged due to excessive pressure.

In order to achieve the above object, the sky-earth hinge of the present invention includes a base, a rotating shaft unit, two damping units, at least one flow regulating valve, and a back resistance regulating valve. The inside of the base has an oil storage space and an oil guide passage connected to the oil storage space, and a first adjustment hole and a second adjustment hole communicated with the oil guide passage pass through the surface of the base; The rotating shaft unit is rotatably arranged in the oil storage space of the base and protrudes from the top surface of the base, and can be rotated by the thrust of the door opening; each of the damping units is arranged in the oil storage space of the base and is located on the The two sides of the oil guide channel of the base are connected with the shaft unit, and can be moved along the length direction of the base by the rotation of the shaft unit to provide damping effect when closing the door; the flow adjustment valve is located on the The first adjustment hole of the base extends into the oil guide channel of the base to control the amount of oil return in the oil guide channel when the door is closed; the back resistance adjustment valve is located at the second adjustment of the base The hole extends into the oil guide channel of the base, and is located between the rotating shaft unit and the flow regulating valve to control the amount of oil entering the oil guide channel from the oil storage space when the door is opened.

Furthermore, each of the damping units is equipped with a pressure relief valve, mainly to perform forced oil discharge when the back resistance adjustment valve is fully locked and the door is still forcibly opened, or when the door is forcibly closed by strong wind or other external force In order to avoid the overall structure being damaged by excessive pressure, perform forced oil draining under certain conditions.

Description of drawings

In order to describe in detail the structure, features and effects of the present invention, a preferred embodiment is listed below and described in conjunction with the following drawings as follows, wherein:

Fig. 1 is a perspective view of a preferred embodiment of the present invention.

Fig. 2 is an exploded perspective view of a preferred embodiment of the present invention.

Fig. 3 is a cross-sectional view of a preferred embodiment of the present invention, mainly showing the state where the piston moves to the left to block the first oil guide hole.

Fig. 4 is a partial sectional view of a preferred embodiment of the present invention, mainly showing the locked state of the back resistance adjusting valve.

Fig. 5 is similar to Fig. 4 and mainly shows the state after the back resistance adjustment valve is released.

Fig. 6 is another partial sectional view of a preferred embodiment of the present invention, mainly showing the state of forced oil discharge by the pressure relief valve.

Fig. 7 is similar to Fig. 3, mainly showing the state where the piston moves to the right to block the first oil guide hole and the fourth oil guide hole.

Fig. 8 is similar to Fig. 5, mainly showing the state of the flow adjustment valve locked.

Fig. 9 is similar to Fig. 8, and mainly shows the state that the flow regulating valve is loosened.

Fig. 10 is similar to Fig. 7, mainly showing the state where the piston moves to the right to block the third oil guide hole.

Fig. 11 is similar to Fig. 9, and mainly shows the locked state of the flow regulating valve.

Fig. 12 is similar to Fig. 11, and mainly shows the state that the flow regulating valve is loosened.

Detailed ways

Please refer to Fig. 1 and Fig. 2 first, which is a sky-earth hinge 10 according to a preferred embodiment of the present invention, which includes a base 20, a shaft unit 30, two damping units 40, two flow adjustment valves 50a, 50b, and a back resistance adjustment valve 60, a check valve 70, and two pressure relief valves 80.

Please refer to FIG. 2 to FIG. 4, the base 20 is elongated, and has an oil storage space 21 for storing hydraulic oil and an oil guide channel 22 connected to the oil storage space 21, and the base 20 Two first adjustment holes 23a, 23b and a second adjustment hole 24 communicated with the oil guide channel 22 penetrate through the top surface. The oil guide passage 22 has a first section 221, a second section 223 below the first section 221, a third section 225 above the second section 223, and a section between the first section 221 and the third section 225. The steel ball 227 between them is used to block the first section 221 and the third section 225, wherein, one end of the first section 221 is connected to the oil storage space 21, and the other end of the first section 221 and the second section 223 are connected through the second section 223. The adjustment hole 24 communicates, the two ends of the second section 223 respectively communicate with the oil storage space 21 through a first oil guide hole 25 and a second oil guide hole 26, the third section 225 communicates with the first adjustment holes 23a, 23b, and It communicates with the second section 223 through the first adjustment hole 23a, and the third section 225 communicates with the oil storage space 21 through a third oil guide hole 27 and a fourth oil guide hole 28, and the third oil guide hole 27 Located between the two first adjustment holes 23a, 23b, the fourth oil guide hole 28 is located between the first adjustment hole 23a and the second adjustment hole 24. In addition, the base 20 penetrates a fixing hole 29 from its rear end surface to fix the The hole 29 communicates with the second section 223 of the oil guiding channel 22 , the second oil guiding hole 26 and the first adjusting hole 23b.

Please refer to FIG. 2 and FIG. 3 , the rotating shaft unit 30 has two pressing plates 32 , three rotating wheels 34 , and a rotating shaft 36 . The two pressure plates 32 are arranged in the oil storage space 21 of the base 20 facing each other; the three rotating wheels 34 are arranged between the two pressure plates 32 and arranged in a triangle; the rotating shaft 36 is rotatably arranged between the two pressure plates 32 and is located The center of the three rotating wheels 34 protrudes from the top surface of the base 20 with its top end, which is used for door panel connection. The bottom end of the rotating shaft 36 has a cam plate 362, and the cam plate 362 can be pushed therein by the rotation of the rotating shaft 36. A rotating wheel 34 allows the two pressing plates 32 to move along the length direction of the base 20 .

The two damping units 40 are disposed in the oil storage space 21 of the base 20 and located on both sides of the oil guide channel 22 . Since the structures of the two damping units 40 are identical, only one of them will be described here. As shown in Figures 2 and 3, the damping unit 40 has a connecting rod 42, an elastic member 44 and a piston 46, one end of the connecting rod 42 is connected between the two pressure plates 32, the other end is connected with the piston 46, and the elastic member 44 It is sleeved on the connecting rod 42 and located between the two pressing plates 32 and the piston 46 . Thus, the connecting rod 42 will drive the piston 46 to move along the length direction of the base 20 through the movement of the two pressure plates 32 , and the piston 46 will compress the elastic member 44 during the movement, so that the elastic member 44 accumulates a restoring force.

The flow adjustment valves 50a, 50b are respectively screwed to the first adjustment holes 23a, 23b of the base 20 and protrude into the oil guide passage 22 of the base 20, as shown in Figure 2 and Figure 4, can control the flow rate of the oil guide when the door is closed. The oil quantity size in passage 22 is adjusted the speed of closing door.

The back resistance adjustment valve 60 is screwed to the second adjustment hole 24 of the base 20 and extends into the oil guide passage 22 of the base 20, and is located between the shaft unit 30 and the flow adjustment valve 50a to control the flow from the guide when the door is opened. The amount of oil that the first section 221 of the oil passage 22 enters the second section 223 of the oil guide passage 22 is as shown in FIG. 2 and FIG. 4 . The back resistance adjustment valve 60 has a first valve body 62 and a first non-return steel ball 64, wherein the first valve body 62 has a first different-diameter hole communicating with the second section 223 of the oil guide passage 22 along its axial direction. 622, and there is a first valve hole 624 connecting the first different-diameter hole 622 and the first section 221 of the oil guide passage 22 along its radial direction; the first non-return steel ball 64 is arranged in the first different-diameter hole 622 and is located The hole diameter change of the first different diameter hole 622 can be pushed away by the oil pressure so that the hydraulic oil can flow from the second section 223 of the oil guide passage 22 to the oil guide through the first different diameter hole 622 and the first valve hole 624 The first section 221 of the passage 22, and the hydraulic oil in the oil storage space 21 cannot flow from the first section 221 of the oil guide passage 22 to the oil guide passage 22 through the first valve hole 624 and the first different-diameter hole 622 The second section 223 of the first non-return steel ball 64 is one-way closed, so it is not limited to this when the back resistance adjustment valve 60 is loosened, as shown in Figure 9 .

The check valve 70 is screwed to the fixing hole 29 of the base 20 and has a second valve body 72 and a second check ball 74 , as shown in FIG. 4 . The second valve body 72 has a second different-diameter hole 722 communicating with the second section 223 of the oil guide channel 22 along its axial direction, and has a second different-diameter hole 722 communicating with the second oil guide hole 26 along its radial direction. The second valve hole 724; the second non-return steel ball 74 is set in the second different diameter hole 722 and is located at the hole diameter change of the second different diameter hole 722, and can be pushed away by the oil pressure so that the hydraulic oil can flow from the oil guide passage. The second segment 223 of 22 flows into the oil storage space 21 through the second different diameter hole 722, the second valve hole 724 and the second oil guide hole 26, and the hydraulic oil in the oil storage space 21 is driven by the second non-return steel ball. 74 is closed, so the second section 223 of the oil guide channel cannot flow through the second oil guide hole 26 , as shown in FIGS. 4 and 5 .

The two pressure relief valves 80 are respectively installed on the piston 46 of the damping unit 40 and have opposite installation directions to cope with different door opening directions. Since the structures of the two sets of pressure relief valves 80 are identical, only one of them will be described here. As shown in Figures 2 and 3, the pressure relief valve 80 has a third valve body 82, a third non-return steel ball 84, a fixed pin 86, and an elastic member 88, wherein the third valve body 82 is fixed on the piston 46 and pass through a third different diameter hole 822 along its axial direction; the third non-return steel ball 84 is arranged in the third different diameter hole 822 and is located at the hole diameter change of the third different diameter hole 822; the fixed pin 86 is along the first The three valve body 82 is radially fixed to the third valve body 82 and is located in the third different-diameter hole 822; the elastic member 88 is arranged between the third non-return steel ball 84 and the fixed pin 86 to provide the third non-return steel ball The power of 84 replies. When the third non-return steel ball 84 is in the normal state, it will prevent the hydraulic oil from flowing from the left side of the piston 46 to the right side of the piston 46 through the third different-diameter hole 822, as shown in Figure 3, when the oil pressure is greater than the pressure applied by the elastic member 88 When the elastic force of the third non-return steel ball 84 is activated, the third non-return steel ball 84 will be pushed to allow hydraulic oil to flow from the left side of the piston 46 to the right side of the piston 46 through the third different-diameter hole 822, as shown in Figure 6 .

The above is the detailed structure of the sky-earth hinge 10 of the present invention, and the use process and characteristics of the present invention will be described below.

When the door panel has an opening action, the door panel will drive the rotating shaft 36 to rotate, and the cam plate 362 connected to the rotating shaft 36 will push one of the runners 34 on the left side of the cam plate 362 to drive the two pressing plates 32 along the length direction of the base 20 Move to the left, let the two pistons 46 of the damping unit 40 gradually move to the left along with the two pressure plates 32, as shown in Figure 3, the hydraulic oil at this time will flow through the first guide from the oil storage space 21 on the left side of the piston 46 The second section 223 of the oil hole 25 to the oil guide channel 22 will then push away the second non-return steel ball 74 of the check valve 70 and flow into the second different-diameter hole 722 of the check valve 70, and then from the check valve 70 The second valve hole 724 flows through the second oil guide hole 26 to the oil storage space 21 on the right side of the piston 46. When the piston 46 continues to move to the left to block the first oil guide hole 25, if the back The resistance adjustment valve 60 is in a locked state, as shown in Figure 4, the piston 46 will be unable to flow through the first section 221 of the oil guide passage 22 to the second section 223 of the oil guide passage 22 because the hydraulic oil in the oil storage space 21 cannot flow Stop moving, and the door panel will also stop opening. If you continue to forcibly push the door panel at this time, the third non-return steel ball 84 of the pressure relief valve 80 will be pushed open due to excessive oil pressure, as shown in Figure 6. The oil can flow from the left side of the piston 46 to the right side of the piston 46 through the third different-diameter hole 822 of the pressure relief valve 80 to achieve the effect of forced oil drainage. At this time, the door panel will be opened to about 60±6 degrees. Conversely, when the piston 46 moves to the left to block the first oil guide hole 25, if the back resistance adjustment valve 60 is in a loose state, as shown in Figure 5, the hydraulic oil will flow from the storage tank on the left side of the piston 46. The oil space 21 enters the first section 221 of the oil guide passage 22, and flows to the second section 223 of the oil guide passage 22 through the loosened gap between the back resistance adjustment valve 60 and the second adjustment hole 24, and then pushes the stopper open. The second non-return steel ball 74 of the non-return valve 70 flows into the second different-diameter hole 722 of the non-return valve 70, and then flows from the second valve hole 724 of the non-return valve 70 through the second oil guide hole 26 to the right side of the piston 46. Side oil storage space 21, as shown in Figure 5.

On the other hand, when the received power disappears when the door panel is opened, it should move towards the closing direction. If the flow regulating valve 50a is locked at this time, the door panel will not move, as shown in FIG. 8 . If the flow regulating valve 50a is released, the piston 46 of the damping unit 40 will gradually move to the right under the restoring force of the elastic member 44, because the piston 46 of the damping unit 40 blocks the first oil guide hole 25 and the fourth oil guide hole 28, as shown in Figure 7, the hydraulic oil at this time will flow from the oil storage space 21 on the right side of the piston 46 through the third oil guide hole 27 and the loosened gap between the flow adjustment valve 50a and the first adjustment hole 23a And enter the second section 223 of the oil guide passage 22, and then a part of the hydraulic oil can flow through the first section 221 of the oil guide passage 22 through the loosened gap between the back resistance adjustment valve 60 and the second adjustment hole 24 to the piston 46. In the oil storage space 21 on the left side, another part of the hydraulic oil will push away the first check ball 64 of the back resistance adjustment valve 60 and flow into the first different diameter hole 622 of the back resistance adjustment valve 60, and then from the back The first valve hole 624 of the resistance adjusting valve 60 flows through the first section 221 of the oil guide passage 22 to the oil storage space 21 on the left side of the piston 46 , as shown in FIG. 9 .

When the door panel continues to close, the piston 46 of the damping unit 40 will continue to move to the right to completely block the third oil guide hole 27, as shown in Figure 10, if the flow adjustment valve 50b is locked at this time, as shown in Figure 11 As shown, the door panel will stop moving but not completely closed. At this time, the angle of the door panel is about 15 degrees. If the flow adjustment valve 50b is loosened, as shown in Figure 12, the hydraulic oil will flow from the oil storage located on the right side of the piston 46 The space 21 flows through the second oil guide hole 26 and the gap loosened between the flow adjustment valve 50b and the first adjustment hole 23b to the third section 225 of the oil guide passage 22, at this time the position of the piston 46 of the damping unit 40 is completely Block the third oil guide hole 27, but the fourth oil guide hole 28 is not completely blocked, then a part of the hydraulic oil will flow from the fourth oil guide hole 28 to the oil storage space 21 on the left side of the piston 46, The other part of the hydraulic oil is from the gap between the flow regulating valve 50a and the first adjustment hole 23 to the second section 223 of the oil guide passage 22, and then flows from the first oil guide hole 25 to the left side of the piston 46. The oil storage space 21 until the door panel is completely closed.

Based on the above, it can be seen that the heaven and earth hinge 10 of the present invention can adjust the tightness of the back resistance adjustment valve 60 according to different usage conditions, so as to control the buffer force and opening angle received during the opening process of the door panel. When 60 is locked tighter, because the amount of oil that can pass between the back resistance adjustment valve 60 and the second adjustment hole 24 is less, the buffer force received when the door panel is opened will be greater, and the angle that the door panel can be opened will also be smaller. The smaller it will be, when the back resistance adjustment valve 60 is locked, the opening angle of the door panel is about 60 degrees ± 6 degrees, and the buffer force will be larger at this time, on the contrary, when the back resistance adjustment valve 60 is locked more loosely, it can pass The more oil there is between the back resistance adjusting valve 60 and the second adjusting hole 24 , the smaller the buffering force the door panel receives when it is opened, and the greater the angle at which the door panel can be opened. Even if the back resistance adjustment valve 60 is fully locked, the pressure relief valve 80 can perform the action of forced oil discharge, so as to effectively prevent the door panel and the sky-earth hinge 10 of the present invention from being damaged.

It is worth mentioning that the purpose of setting two sets of flow regulating valves 50a and 50b is to allow the door panel to perform a two-stage closing action. Of course, a single set of flow regulating valve 50a can also be provided to allow the door panel to only have a one-stage closing action.

The constituent elements disclosed in the foregoing embodiments of the present invention are for illustration only and are not intended to limit the scope of the present application. Substitution or changes of other equivalent elements should also be covered by the claims of the present application.

Claims (8)

1. a Pinless hinge with guide member for adjustable back of the body resistance, includes:

One pedestal, portion has the Oil Guide passage that an oil storage space and is communicated with this oil storage space in the inner, and run through from its surface and at least one the first access of this Oil Guide channel connection and one second adjusting hole, this Oil Guide passage has a first paragraph, one is positioned at the second segment below this first paragraph, one is positioned at the 3rd section above this second segment, wherein, one end of this first paragraph is communicated with this oil storage space, the other end of this first paragraph is communicated with via this second adjusting hole with between this second segment, the two ends of this second segment are communicated with this oil storage space via one first oil guiding hole and one second oil guiding hole respectively, 3rd section is communicated with via this first access with between this second segment, and the 3rd section is communicated with this oil storage space via one the 3rd oil guiding hole, 3rd oil guiding hole is positioned at the side of this first access away from this second adjusting hole, the 3rd section of this Oil Guide passage is communicated with this oil storage space via one the 4th oil guiding hole, 4th oil guiding hole is between this first access and this second adjusting hole, the number of the first access of this pedestal is two, this two the first access compartment of terrain arranges and is positioned at the both sides, front and back of the 3rd oil guiding hole, the number of this flow rate regulating valve is two, is located at the first access of this pedestal respectively and stretches in the Oil Guide passage of this pedestal,

One rotating shaft unit, is rotatably located at the oil storage space of this pedestal and protrudes from the end face of this pedestal;

Two damping units, are positioned at the Oil Guide passage both sides of this pedestal in the oil storage space being located at this pedestal, and are connected with this rotating shaft unit, can move by the length direction by the rotation of this rotating shaft unit along this pedestal;

At least one flow rate regulating valve, is located at the first access of this pedestal and stretches in the Oil Guide passage of this pedestal; And

One back of the body resistance regulating valve, is located at the second adjusting hole of this pedestal and stretches in the Oil Guide passage of this pedestal, and between this rotating shaft unit and this flow rate regulating valve.

2. the Pinless hinge with guide member of the adjustable back of the body as claimed in claim 1 resistance, wherein this pedestal runs through a fixing hole from end face thereafter, and this fixing hole is communicated with the second segment of this Oil Guide passage, this second oil guiding hole and wherein this first access, and is provided with a check (non-return) valve.

3. the Pinless hinge with guide member of the adjustable back of the body as claimed in claim 2 resistance, wherein this check (non-return) valve has a valve body and a non-return steel ball, this valve body axially has the different diameter hole of the second segment of this Oil Guide passage of a connection along it, and radially there is the valve opening of this different diameter hole of a connection and this second oil guiding hole, this non-return steel ball is located in this different diameter hole movably, this different diameter hole can be allowed to communicate with the second segment of this Oil Guide passage by oil pressure effect.

4. the Pinless hinge with guide member of the adjustable back of the body as claimed in claim 1 resistance, wherein this back of the body resistance regulating valve has a valve body and a non-return steel ball, this valve body axially has the different diameter hole of the second segment of this Oil Guide passage of a connection along it, and radially there is the valve opening of the first paragraph of this different diameter hole of a connection and this Oil Guide passage, this non-return steel ball is located in this different diameter hole movably, this different diameter hole can be allowed to communicate with the second segment of this Oil Guide passage by oil pressure effect.

5. the Pinless hinge with guide member of the adjustable back of the body as claimed in claim 1 resistance, wherein this rotating shaft unit has two pressing plates, three runners and a rotating shaft, connect for this two damping unit with one side in this pedestal is located at mutually by this two pressing plate oil storage space to ground connection, this three runner is located between this two pressing plate, this rotating shaft is rotatably located between this two pressing plate, and protrude from the surface of this pedestal with its top and in its bottom, there is a lobe plate, this lobe plate can by the rotation of this rotating shaft ejection wherein this runner.

6. the Pinless hinge with guide member of the adjustable back of the body as claimed in claim 5 resistance, wherein respectively this damping unit has a connecting rod, an elastic component and a piston, one end of this connecting rod is connected between this two pressing plate, the other end is connected with this piston, and this elastic component is located at this connecting rod and between this two pressing plate and this piston.

7. the Pinless hinge with guide member of the adjustable back of the body as claimed in claim 6 resistance, it also includes two relief valves, is located at the piston of this damping unit respectively and arranges in the opposite direction.

8. the Pinless hinge with guide member of the adjustable back of the body as claimed in claim 7 resistance, wherein respectively this relief valve has a valve body, a non-return steel ball, a steady pin, and an elastic component, this valve body is fixed on this piston and axially runs through a different diameter hole along it, this steel ball is located in this different diameter hole movably, radial direction in the different diameter hole that this steady pin is fixed on this valve body and along this valve body is arranged, and this elastic component is located between this non-return steel ball and this steady pin.